Madagascar dwarf lily (Nymphaea Stellata) is a small plant taken from the leaves of tropical water lily which has been know to spread more than six feet. This lily needs to be plant on a pot, it also needs about three to four hours of direct sun light every single day. Average tropical fish water tanks temperature seems suitable for this lily. And if you are lucky you may see it’s flower steems above the surface carrying small bluish white blossoms.